Poll results, threshold crossings and the alert cooldown now return
values instead of calling the tray, so they run under unit tests. The
bubble and panel payloads carry every display string and colour from
Rust, and the context menu is a plain tree with string ids that parse
back into commands. The update-check schedule and countdown delay are
plain functions of the stored times.
Settings, the English strings, the colour ramp and the bubble geometry no
longer touch Win32 types, so they compile and test on every platform.
Snapping, clamping, default placement, panel placement and the monitor
probe take plain rects; settings loading is split into parsing and an
offscreen check fed with the monitor list. ProviderId now serialises as
its slug.
tiennm99